Abstract: Dimensionality and expressions in Chinese of auditory attributes for vehicle noise are investigated.First, three questionnaire surveys are accomplished to obtain a number of auditory descriptors in Chinese,and then based on Paired Comparison and Semantic Differential approaches,two subjective jury tests are accomplished to obtain a similarity matrix and ranked descriptors.Finally,by use of Multidimensional Scaling and Principal Component Analysis,auditory attributes for equal-loudness vehicle noise are determined and then is expressed in terms of three Chinese adjectives corresponding to "roughness", "sharpness" and "fluctuation".